The hatching of cereal cyst nematode (Heterodera avenae) in response to different inorganic ions



Título del documento: The hatching of cereal cyst nematode (Heterodera avenae) in response to different inorganic ions
Revista: Scientia Agricola
Base de datos: PERIÓDICA
Número de sistema: 000455493
ISSN: 0103-9016
Autors: 1
1
1
1
Institucions: 1University Guangxi, Agricultural College of Guangxi, Nanning, Guanxi. China
Any:
Volum: 79
Número: 1
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés Cereal cyst nematode is a major pest of small grain cereals, which causes huge yield losses to crops in China and other parts of the world. In this study, the effects of five inorganic ion concentrations on egg hatching of Heterodera avenae were studied. Results revealed that ZnCl2 and FeCl3 promoted hatching of induced and natural diapausing eggs. The cumulative hatching rates of eggs were 49 % and 13 % at 30 mM ZnCl2 and 10 mM FeCl3, respectively, which were higher than those of other treatments. The hatching ability promoted by ZnCl2 is greater than by FeCl3. Diapause induced eggs in ZnCl2 continued to hatch after 10 days; however, those in FeCl3 mainly hatched in the first two weeks. ZnCl2 had obvious stimulating effects on the hatching of natural diapause and non–diapause free eggs at 15 and 30 mM concentrations. FeCl3 promoted the hatching of natural diapause eggs; howevr, it inhibited hatching of non–diapause free eggs. Conversely, different concentrations of inorganic ions did not have any stimulatory effect on white female eggs. In the nematode life cycle, hatching is the critical stage because juveniles may be infected. The results of this study provide useful information the use of new fertilizers (including promoted hatching inorganic ions) applied before planting for controlling nematode diseases caused by H. avenae
Disciplines Agrociencias,
Biología
Paraules clau: Fitopatología,
Helmintos,
Nemátodos,
Heterodera avenae,
Eclosión,
Iones
Keyword: Phytopathology,
Helminths,
Nematodes,
Heterodera avenae,
Hatching,
Ions,
Plant–parasitic nematodes
Text complet: Texto completo (Ver HTML) Texto completo (Ver PDF)